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import dataclasses
from textwrap import dedent
import strawberry
from strawberry.types.unset import UNSET
def test_mutation():
@strawberry.type
class Query:
hello: str = "Hello"
@strawberry.type
class Mutation:
@strawberry.mutation
def say(self) -> str:
return "Hello!"
schema = strawberry.Schema(query=Query, mutation=Mutation)
query = "mutation { say }"
result = schema.execute_sync(query)
assert not result.errors
assert result.data["say"] == "Hello!"
def test_mutation_with_input_type():
@strawberry.input
class SayInput:
name: str
age: int
@strawberry.type
class Query:
hello: str = "Hello"
@strawberry.type
class Mutation:
@strawberry.mutation
def say(self, input: SayInput) -> str:
return f"Hello {input.name} of {input.age} years old!"
schema = strawberry.Schema(query=Query, mutation=Mutation)
query = 'mutation { say(input: { name: "Patrick", age: 10 }) }'
result = schema.execute_sync(query)
assert not result.errors
assert result.data["say"] == "Hello Patrick of 10 years old!"
def test_mutation_reusing_input_types():
@strawberry.input
class SayInput:
name: str
age: int
@strawberry.type
class Query:
hello: str = "Hello"
@strawberry.type
class Mutation:
@strawberry.mutation
def say(self, input: SayInput) -> str:
return f"Hello {input.name} of {input.age} years old!"
@strawberry.mutation
def say2(self, input: SayInput) -> str:
return f"Hello {input.name} of {input.age}!"
schema = strawberry.Schema(query=Query, mutation=Mutation)
query = 'mutation { say2(input: { name: "Patrick", age: 10 }) }'
result = schema.execute_sync(query)
assert not result.errors
assert result.data["say2"] == "Hello Patrick of 10!"
def test_unset_types():
@strawberry.type
class Query:
hello: str = "Hello"
@strawberry.input
class InputExample:
name: str
age: int | None = UNSET
@strawberry.type
class Mutation:
@strawberry.mutation
def say(self, name: str | None = UNSET) -> str: # type: ignore
if name is UNSET:
return "Name is unset"
return f"Hello {name}!"
@strawberry.mutation
def say_age(self, input: InputExample) -> str:
age = "unset" if input.age is UNSET else input.age
return f"Hello {input.name} of age {age}!"
schema = strawberry.Schema(query=Query, mutation=Mutation)
query = 'mutation { say sayAge(input: { name: "P"}) }'
result = schema.execute_sync(query)
assert not result.errors
assert result.data["say"] == "Name is unset"
assert result.data["sayAge"] == "Hello P of age unset!"
def test_unset_types_name_with_underscore():
@strawberry.type
class Query:
hello: str = "Hello"
@strawberry.input
class InputExample:
first_name: str
age: str | None = UNSET
@strawberry.type
class Mutation:
@strawberry.mutation
def say(self, first_name: str | None = UNSET) -> str: # type: ignore
if first_name is UNSET:
return "Name is unset"
if first_name == "":
return "Hello Empty!"
return f"Hello {first_name}!"
@strawberry.mutation
def say_age(self, input: InputExample) -> str:
age = "unset" if input.age is UNSET else input.age
age = "empty" if age == "" else age
return f"Hello {input.first_name} of age {age}!"
schema = strawberry.Schema(query=Query, mutation=Mutation)
query = """mutation {
one: say
two: say(firstName: "Patrick")
three: say(firstName: "")
empty: sayAge(input: { firstName: "Patrick", age: "" })
null: sayAge(input: { firstName: "Patrick", age: null })
sayAge(input: { firstName: "Patrick" })
}"""
result = schema.execute_sync(query)
assert not result.errors
assert result.data["one"] == "Name is unset"
assert result.data["two"] == "Hello Patrick!"
assert result.data["three"] == "Hello Empty!"
assert result.data["empty"] == "Hello Patrick of age empty!"
assert result.data["null"] == "Hello Patrick of age None!"
assert result.data["sayAge"] == "Hello Patrick of age unset!"
def test_unset_types_stringify_empty():
@strawberry.type
class Query:
hello: str = "Hello"
@strawberry.type
class Mutation:
@strawberry.mutation
def say(self, first_name: str | None = UNSET) -> str: # type: ignore
return f"Hello {first_name}!"
schema = strawberry.Schema(query=Query, mutation=Mutation)
query = """mutation {
say
}"""
result = schema.execute_sync(query)
assert not result.errors
assert result.data["say"] == "Hello !"
query = """mutation {
say(firstName: null)
}"""
result = schema.execute_sync(query)
assert not result.errors
assert result.data["say"] == "Hello None!"
def test_converting_to_dict_with_unset():
@strawberry.type
class Query:
hello: str = "Hello"
@strawberry.input
class Input:
name: str | None = UNSET
@strawberry.type
class Mutation:
@strawberry.mutation
def say(self, input: Input) -> str:
data = dataclasses.asdict(input)
if data["name"] is UNSET:
return "Hello 🤨"
return f"Hello {data['name']}!"
schema = strawberry.Schema(query=Query, mutation=Mutation)
query = """mutation {
say(input: {})
}"""
result = schema.execute_sync(query)
assert not result.errors
assert result.data["say"] == "Hello 🤨"
def test_mutation_deprecation_reason():
@strawberry.type
class Query:
hello: str = "world"
@strawberry.type
class Mutation:
@strawberry.mutation(deprecation_reason="Your reason")
def say(self, name: str) -> str:
return f"Hello {name}!"
schema = strawberry.Schema(query=Query, mutation=Mutation)
assert str(schema) == dedent(
"""\
type Mutation {
say(name: String!): String! @deprecated(reason: "Your reason")
}
type Query {
hello: String!
}"""
)
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